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a fost răspuns

Rezolvati ecuatiile: a) x-2,451+4×=23,054; b) 2,5x-1,3=0,5x+5,7

Răspuns :

Icecon2005
a) x-2,451+4x=23,054;

x+4x=23,054+2,451

5x=25,505

x=25,505:5

x=5,101


b) 2,5x-1,3=0,5x+5,7

2,5x-0,5x=5,7+1,3

2x=7

x=7/2

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